From 69b6bdca5674342f1970fad8c6e00c5ad24130d3 Mon Sep 17 00:00:00 2001
From: unknown <174657090+Butenkite@users.noreply.github.com>
Date: Mon, 20 Jan 2025 22:09:34 -0800
Subject: [PATCH] Updated tests

---
 src/CharacterFrequencyCounter.java     |  6 ++++--
 src/CharacterFrequencyCounterTest.java | 20 +++++++++++++++++++-
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/CharacterFrequencyCounter.java b/src/CharacterFrequencyCounter.java
index d4e09c1..a1b3060 100644
--- a/src/CharacterFrequencyCounter.java
+++ b/src/CharacterFrequencyCounter.java
@@ -60,8 +60,10 @@ public int getFrequency(char c) {
      */
     public double getRelativePercentage(char c) {
         c = Character.toLowerCase(c);
-        int charCount = frequencyMap.get(c);
-
+        int charCount = 0;
+        if(frequencyMap.get(c) != null){
+            charCount = frequencyMap.get(c);
+        }
         return ((double) charCount / totalCharacterCount) * 100;
     }
 }
diff --git a/src/CharacterFrequencyCounterTest.java b/src/CharacterFrequencyCounterTest.java
index bed3ee2..eaf0517 100644
--- a/src/CharacterFrequencyCounterTest.java
+++ b/src/CharacterFrequencyCounterTest.java
@@ -3,5 +3,23 @@
 import org.junit.jupiter.api.Test;
 
 public class CharacterFrequencyCounterTest {
-    
+  @Test
+  public void testLAppears3TimesInHelloWorld(){
+    // arrange
+    CharacterFrequencyCounter counter = new CharacterFrequencyCounter("hello world");
+    // act
+    int actual = counter.getFrequency('l');
+    // assert
+    assertEquals(3, actual);
+  }    
+
+  @Test
+  public void testNonOccurringCharacterPercentageIsZero(){
+    // arrange
+    CharacterFrequencyCounter counter = new CharacterFrequencyCounter("hi there");
+    // act
+    double actualPercent = counter.getRelativePercentage('z');
+    // assert
+    assertEquals(0.0, actualPercent, 0.0001);
+  }    
 }
\ No newline at end of file